We're dividing 644213 by 99 
Let's see how many times 99 fits into 644213.

Advancing to step 1:
99 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 99

Going ahead to step 2:
If we divide 64 by 99, we get 0 and a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Grab the next digit (4) from the dividend, add it to 64, then carry on: 644 / 99

Advancing to step 3:
The number 99 fits into 644 6 times, leaving a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 594 from 644, we get 50.
Append the next digit (2) from the dividend to 50 and continue with: 502 / 99

On to step 4:
The number 99 fits into 502 5 times, leaving a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 65.0
If we take 495 away from 502, we end up with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 99

Let's proceed to step 5:
71 divided by 99 is 0 with a remainder of 71.
Write down 0 as next digit of the result. 
Result so far: 650.0
If we take 0 away from 71, we end up with 71.
Fetch the next digit (3) from the dividend, attach it to 71 and continue: 713 / 99

Let's proceed to step 6:
The number 99 fits into 713 7 times, leaving a remainder of 20.
Write down 7 as next digit of the result. 
Result so far: 6507.0
If we take 693 away from 713, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 7:
When dividing 200 by 99, we get 2 with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 6507.2
Subtract 198 from 200 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
When dividing 20 by 99, we get 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 6507.2
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
If we divide 200 by 99, we get 2 and a remainder of 2.
The next digit of our result is 2. 
Result so far: 6507.202
Subtract 198 from 200 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 10:
20 divided by 99 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 6507.202
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 11:
The number 99 fits into 200 2 times, leaving a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 6507.20202
If we take 198 away from 200, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
99 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 6507.20202
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
When dividing 200 by 99, we get 2 with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 6507.2020202
Deduct 198 from 200 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 14:
When dividing 20 by 99, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 6507.2020202
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 6507.2020202 and a remainder of 2e-08.